Dichloroacetic Acid → 3,4-difluoro-2-(2-fluoro-4-iodo-phenylamino)-5-hydroxyaminomethyl-N-(2-hydroxy-ethoxy)-benzamide
Reaction equation
[F:1][C:2]1[C:3]([NH:19][C:20]2[CH:25]=[CH:24][C:23]([I:26])=[CH:22][C:21]=2[F:27])=[C:4]([CH:12]=[C:13](/[CH:16]=[N:17]/[OH:18])[C:14]=1[F:15])[C:5]([NH:7][O:8][CH2:9][CH2:10][OH:11])=[O:6].ClC(Cl)C(O)=O>>[F:1][C:2]1[C:3]([NH:19][C:20]2[CH:25]=[CH:24][C:23]([I:26])=[CH:22][C:21]=2[F:27])=[C:4]([CH:12]=[C:13]([CH2:16][NH:17][OH:18])[C:14]=1[F:15])[C:5]([NH:7][O:8][CH2:9][CH2:10][OH:11])=[O:6]Participants
3
Procedure
The title compound was obtained by a procedure similar to that in Step C of Example 9. Namely, (E)-3,4-difluoro-2-(2-fluoro-4-iodo-phenylamino)-N-(2-hydroxy-ethoxy)-5-(hydroxyimino-meth yl)-benzamide was reduced with borane-pyridine complex in the presence of dichloroacetic acid to give 3,4-difluoro-2-(2-fluoro-4-iodo-phenylamino)-5-hydroxyaminomethyl-N-(2-hydroxy-ethoxy)-benzamide (28.14 mg, 81%).